Transcription and logic operations of magnetic skyrmions in bilayer cross structures
Transcription and logic operations of magnetic skyrmions in bilayer cross structures
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DOI：
10.1088/1361-648x/ac117e
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发表时间：
2021-07
期刊：
影响因子：
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通讯作者：
K. Mak;J. Xia;Xichao Zhang;M. Ezawa;Xiaoxi Liu;Yan Zhou
中科院分区：
文献类型：
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作者：
K. Mak;J. Xia;Xichao Zhang;M. Ezawa;Xiaoxi Liu;Yan Zhou
磁性skyrmins是未来信息存储和计算设备的潜在构建模块。在这里，我们计算研究了由两个铁磁纳米轨道组成的交叉结构中的skyrmion动力学。我们证明了利用自旋电流控制交叉结构中skyrmion的运动，可以在一定条件下实现交叉结构交点处skyrmion的转录。在skyrmion转录的基础上，我们用修正几何形状和适当磁参数的交叉结构计算证明了与、或和非逻辑门。我们的研究结果可能为未来基于磁基粒子的三维自旋电子学器件的设计提供指导。
Magnetic skyrmions are potential building blocks for future information storage and computing devices. Here, we computationally study the skyrmion dynamics in a cross structure made of two ferromagnetic nanotracks. We show that by controlling the skyrmion motion in the cross structure using spin currents, it is possible to realize the transcription of skyrmion at the intersection of the cross structure at certain conditions. Based on the transcription of skyrmion, we computationally demonstrate the AND, OR and NOT logical gates using the cross structures with modified geometries and appropriate magnetic parameters. Our results may provide guidelines to design future three-dimensional spintronics devices based on magnetic skyrmions.